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Continue to ChatMine Number Six-Pond Six Dam Map - Washington County, PA https://www.yellowmaps.com/usgs/topo.cfm?map=pa-1194587-mine-number-six%2Dpond-six-dam
Mine Number Six-Pond Six Dam Map - Washington County, PA https://www.yellowmaps.com/usgs/topo.cfm?map=pa-1194587-mine-number-six%2Dpond-six-dam